11 III. CHINA case studyEmissions distribution: National total, Province total and Fuel typeEDGAR – improving emissions distribution for large countriesMove from national totals to province/state totalsIn this case study we used the GAINS fractions to allocate the national EDGAR CO2 emissions to the ProvincesProxy used to distribute the CO2 emissions: 1) by country and 2) by provinceRoad transport : population x roads (PC, LD, MC, BS) and roads (HD)Energy: power plantsIndustry : urban population 2005Residential : population 2005Cement production: cementLime production: limeWaste incineration: urban population 2005Domestic aviation: domestic aviation, take off and landingInland water: inland waterPetroleum refining: oil refineriesManufacture of solid fuel - coke

12 CHINA by country vs. CHINA by provinceOn aggregated level the split at province level has minor effect

13 CHINA by country vs. CHINA by provinceCOALCHINA by country vs. CHINA by provinceChongqinginhabitants

14 CHINA by country vs. CHINA by provinceGASCHINA by country vs. CHINA by province

15 CHINA by country vs. CHINA by provinceGAS and COALCHINA by country vs. CHINA by provinceLooking at disaggregated level, by fuel type, subdivision of country totals to province totals becomes very significant.Use of gas or coal in the energy, industry and residential sectors needs to be allocated to the correct province.Proxy used for GAS / COAL emissions distributionEnergy: power plants PP_CARMA_2007Industry: urban population 2005Residential: population 2005

16 ConclusionsEDGAR grids emission country totals at global scale and is building up its pool of global proxy data with consistent global statistics.EDGAR is steadily improving its gridding tools:For regions covered with detailed proxy gridmaps. We check the quality and appropriateness of our proxy data by comparing with advanced proxies: for road transport the “population x roads” proxy seems to be appropriate (compared to “traffic volume” proxy).For large regions (e.g. China, the USA, India). We first split the country emission totals to province emission totals by subdividing the sector-specific country totals to the provinces/ states with appropriate shares (e.g. from GAINS).